Gateway: default to plugin name for getShortName()

And name the SciJava gateway "sj" and stop overriding getShortName().

Author: ctrueden

src/main/java/org/scijava/AbstractGateway.java

@@ -114,6 +114,8 @@ public void launch(final String... args) {
 
 	@Override
 	public String getShortName() {
+		final String pluginName = getInfo() == null ? null : getInfo().getName();
+		if (pluginName != null && !pluginName.isEmpty()) return pluginName;
 		return getClass().getSimpleName().toLowerCase();
 	}
 

src/main/java/org/scijava/SciJava.java

@@ -45,7 +45,7 @@
  * 
  * @author Curtis Rueden
  */
-@Plugin(type = Gateway.class)
+@Plugin(type = Gateway.class, name = "sj")
 public class SciJava extends AbstractGateway {
 
 	// -- Constructors --
@@ -113,12 +113,4 @@ public SciJava(final Collection<Class<? extends Service>> serviceClasses) {
 	public SciJava(final Context context) {
 		super(SciJavaApp.NAME, context);
 	}
-
-	// -- Gateway methods --
-
-	@Override
-	public String getShortName() {
-		return "sj";
-	}
-
 }